Bison BA871 User manual

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P A R T S L I S T
Item Qty Description Item Qty Description
A2Pole Section R43/8" Flat Washer (8 required on double sided systems, not
required on all systems)
B1Pedestal Base Pole (if applicable) S43/8" Lock Washer (8 required on double sided systems, not
required on all systems)
C1Extension Arm (2 required on double sided systems) T1Pole Cap
D1Extension Arm Mounting Plate (not required on
double sided systems)
U1Pole Pad (optional on some systems)
E65/8" x 8" Hex Bolt V81/2" x 3/4" Button Head Screw
F18 5/8" Hex Nut W81/2" Lock Washer
G14 5/8" Flat Washer X2Pole Connector Bar
H10 5/8" Lock Washer YTBD Premix Concrete
I83/8" x 1 1/2" Spring Pin Z21/4" x 8" Carriage Bolt
J1Backboard (model depends on system, 2 required on
double sided systems)
AA 21/4" Wing Nut
K1Rim with Net (model depends on system, 2 required
on double sided systems)
BB 2Predrilled Wooden Panel
L1Rim Mounting Hardware (included with rim) CC 15/16" Hex Key
M27/16" x 1 1/2" Carriage Bolt (4 required on double
sided systems, not required on all systems)
DD 4"J" Bolt
N27/16" Flat Washer (4 required on double sided
systems, not required on all systems)
EE 436" Rebar
O27/16" Lock Washer(4 required on double sided
systems, not required on all systems)
FF 1Template
P27/16" Hex Nut (4 required on double sided systems,
not required on all systems)
GG 4J-Bolt Safety Cap
Q43/8" Hex Nut (8 required on double sided systems,
not required on all systems)
HH 1Warning Label
Implementation Date: 6/15/2022 Rev: 2 N.J.C File: BA871-OL6072FX.pub Ref#: 920477
Customer Service
[phone]
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Warning!!!
Improper installation, maintenance or use may cause product failure and serious personal injury.
 Inspect all contents prior to installation. Report any missing parts to dealer immediately.
 Carefully read all instructions before proceeding. Pay special attention to all safety instructions.
 Save the instructions in the event that the manufacturer must be contacted in the future for maintenance

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1. Call your local utility locating service before digging, usually by dialing 811, to avoid serious injury or
service interruptions. Also avoid lawn sprinkler lines.
IF YOU ARE INSTALLING A DIRECT BURY POLE SYSTEM
2a. Lay two Square Pole Sections (A) on a flat surface with drilled ends positioned as shown in Figure 1.
Loosely attach two Pole Connector Bars (X) to one of the Pole Sections (A) using 1/2" x 3/4" Button Head
Screws (V), 1/2" Lock Washers (W) and 5/16" Hex Key (CC). Connect second Square Pole Section (A)
loosely. Tighten all 1/2" x 3/4" Button Head Screws (V) only when the drilled ends of the Square Pole
Sections (A) are lined up forming a straight pole assembly with minimal gap between the sections.
Figure 2
Figure 1
3a. Determine the position of the pole assembly by taking into account that the distance between the front of
the pole assembly and the face of the backboard is approximately 60" (72” on XL Systems). See Figure 5.
4a. Dig a hole that is a minimum of 12" diameter and 40" deep, deeper in heavy frost areas. Remove dirt in the
bottom 1/3 of the hole in a bell shape to improve pole stability. The amount of Premix Concrete (Y)
required will depend on the final size of the hole, but a 12" diameter hole, 40" deep with minor additional
soil removed from the hole will require approximately 3.5 cubic feet of Premix Concrete (Y). Always
better to have too much rather than too little on site. See Figure 5.

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5a. Using the two 1/4" x 8" Carriage Bolts (Z) and 1/4" Wing Nuts (AA), sandwich the Predrilled Wood
Panels (BB) around the pole assembly at a location where the pole assembly will insert into the concrete
footing. Use the set of holes that are closest to the side of the pole assembly. Position them as shown in
Figure 2. The Installation Aid (Z-BB) can be adjusted to support the pole in the proper position when
inserted into the concrete.
6a. Fill the footing to the top with medium wet fully mixed concrete. Never use the Premix Concrete (Y) dry.
7a. Insert the pole assembly into the center of the footing making sure that one set of 1/2" x 3/4" Button Head
Screws (V) are on the back side of the pole assembly, and that the front face of the pole assembly is
square to the playing surface.
8a. While the concrete is still wet, and the pole assembly is movable, adjust the Installation Aid (Z-BB) on
the pole assembly to help maintain the top of the pole at 96" from the playing surface, plumb in both
directions, and with the front face of the pole parallel to the court. See Figure 5.
9a. ALLOW AT LEAST 4 DAYS FOR CONCRETE TO CURE BEFORE COMPLETING THE
INSTALLATION TO AVOID FOOTING FAILURE. Install Warning Label (HH) at eye level on
the rear of the pole. If your warning label becomes damaged or is unreadable, request a no cost
replacement from the manufacturer.
10a. Drill an 1/8" - 1/4" hole through one wall in the bottom of your pole assembly opposite the playing
surface to ensure no water builds up inside the pole.
11a. Discard the Installation Aid (Z-BB) once footing is cured.
12a. Proceed to #16. TO CONTINUE INSTALLATION

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Figure 3
IF YOU ARE INSTALLING A REMOVABLE PEDESTAL MOUNT SYSTEM
2b. Dig a hole a minimum of 20" in diameter and 36" deep. Bell out the bottom 12" of the hole to a
diameter that is at least 4" larger than the diameter of the hole at the top. Digging the hole too big is
better than digging it too small. See Figure 3.
3b. Prepare the "J" Bolt assembly by first threading a 5/8" Hex Nut (F) onto each "J" Bolt (DD) so that
approximately 2-1/2" of thread is protruding above the nut. Place the threaded end of each
"J" Bolt (DD) through the four holes in the Template (FF). Thread a second 5/8" Hex Nut (F) onto each
"J "Bolt (DD) on the top side of the Template (FF). Tighten the nuts on both sides of the
Template (FF), making sure that the same length of "J" Bolt (DD) (2" minimum) is protruding above
the Template (FF) in all four corners and that the "J" Bolt (DD) "legs" are pointing toward the center of
the Template (FF). See Figure 3.
4b. Before pouring the concrete, make sure you have the required tools available: a level, a broomstick or
similar pole to vibrate the concrete, and a tape measure to correctly place the “J” Bolt Assembly.
5b. A 20" diameter by 36" deep hole, with additional soil removed from the bottom 1/3, will require
approximately 7 cubic feet of Premix Concrete (Y). Allow for more if the hole is deeper or wider.
Make sure you have enough concrete on-site before pouring, because allowing a portion to dry before
the hole is completely filled will affect the strength of the footing.
6b. You are now ready to complete the most critical portion of the installation. Please note (and avoid)
these common installation mistakes:
 Proceeding without reading instructions fully.
 Stopping short of the required hole size.
 Underestimated the amount of concrete required, allowing part of base/footing to cure before you
could finish pouring.
 Just "eyeballing" the squareness of the base. When assembled, the pole and board need to be
parallel or square to your driveway/playing surface.
 Being overanxious to mount the pole and board before the footing was fully cured. (A defective
footing is much harder to dig out than to install.)
 Damaging threads on J-Bolts making it impossible to install 5/8” Hex Nuts (F).

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7b. Mix the concrete according to the instructions on the bag. It is a good idea to have the concrete mixture
be medium wet. This will increase your working time and allow batches to mix in the hole. Pour the hole
full to ground level. Insert the broomstick into the wet concrete and agitate it up and down. REPEAT
SEVERAL TIMES.
8b. Drop four 36” Rebar (EE) into the wet concrete to help support the concrete footing.
9b. Insert the "J" bolt assembly into the wet concrete. Be sure the Template (FF) is parallel to the desired
position of the backboard and the edge of the playing surface. Use the tape measure to double check.
Vibrate the assembly as you insert it so that concrete fills in around the "J" Bolts (DD). Be sure the
Template (FF) is pressed firmly against the surface of the wet concrete. The top of the concrete footing
should be flush with the playing surface.
10b. Clean excess concrete from edge of hole and level the concrete from the edge of the Template (FF) to the
edge of the hole. Allow concrete to cure for 4 days.
11b. Once the concrete is cured you may now remove the upper 5/8" Hex Nuts (F) from the "J" Bolts (DD)
and remove and discard the Template (FF).
12b. Place the 5/8" Hex Nuts (F) you just removed back on each "J" Bolt (DD) and finger tighten against the
nut that is embedded in the concrete footing. Install one 5/8" Flat Washer (G) on top of each 5/8" Hex
Nut (F). See Figure 4.
13b. Install the Pedestal Base Pole (B) over the "J" Bolts (DD). Place 5/8' Flat Washers (G), 5/8" Lock
Washers (H) and 5/8" Hex Nuts (F) on "J" Bolts (DD) above the pole base to tighten base down. You can
level pole if needed by adjusting the 5/8" Hex Nuts (F) above and below the base plate. Make sure all
hardware is tight once leveled. Press "J" Bolt Safety Caps (GG) over the exposed ends of
"J" Bolts (DD). See Figure 4.
14b. Install the Warning Label (HH) at eye level on the rear of the pole.
15b. Proceed to #16. TO CONTINUE INSTALLATION
Figure 4

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Figure 5
16. Using a marker or masking tape, mark the pole assembly 81" (82 1/2” on XL Systems or 83 1/2” on
BA873 Systems) above the final playing surface. See Figure 5.
17. Drive four 3/8" x 1 1/2" Spring Pins (I) into both the Extension Arm (C) and the Extension Arm Mounting
Plate (D). See Figure 5.
18. With the 3/8" x 1 1/2" Spring Pins (I) extending toward the pole, attach the Extension Arm (C) to the
Extension Arm Mounting Plate (D) using 5/8" x 8" Hex Bolts (E), 5/8" Hex Nuts (F), 5/8" Flat
Washers (G), and 5/8" Lock Washers (H) with the bottom of the mounting plate on the Extension
Arm (C) in line with the 81" mark on the pole. Tighten all 5/8" hardware when the Extension Arm (C)
pole mounting plate is level. See Figure 5.
19. If installing a double-sided system, a second Extension Arm (C) is used instead of the Extension Arm
Mounting Plate (D), but with the same hardware. See Figure 5.
IF YOU ARE INSTALLING A BA871, BA871XL, BA872, or BA872XL SYSTEM
20x. Loosely attach the Backboard (J) to the previously installed Extension Arm (C) using the
7/16" hardware (M)(N), (O), and (P). See Figure 5.
21x. Proceed to #23. TO COMPLETE INSTALLATION
PLEASE
NOTE

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IF YOU ARE INSTALLING A BA873, BA873U or BA9873 SYSTEM
20y. Remove the 3/8" Hex Nuts (Q), 3/8" Flat Washers (R) and 3/8" Lock Washers (O) that are preinstalled on
the 3/8" threaded studs on the BA42RG and BA42RGU Backboard (J).
21y. Align the 3/8" threaded studs on the backboard frame with the hole in the Extension Arm (C). Loosely
reinstall the 3/8" flat washers, lock washers, and hex nuts. See Figure 6.
22y. Proceed to #23. TO COMPLETE INSTALLATION
23. Install the Rim (K) using Rim Mounting Hardware (L).
24. Tighten rim and backboard hardware only when the backboard and rim are level.
25. Measure the rim height and adjust if necessary to official 10' height by carefully loosening the 5/8"
Extension Arm (C) mounting hardware.
26. Install the Net (K) and Pole Cap (T). Install Pole Pad (U) and backboard padding (if applicable).
27. You are now ready to play.
Figure 6